不同木薯品种对木薯单爪螨的抗性鉴定评价  

Identification and Evaluation of Resistance of Different Cassava Varieties to Mononychellus mecgregori

作　　者：陈青[1,2] 梁晓 伍春玲[1,2] 刘迎 刘小强[1,2] 乔阳 姚晓文[1,2] 张耀 CHEN Qing;LIANG Xiao;WU Chunling;LIU Ying;LIU Xiaoqiang;QIAO Yang;YAO Xiaowen;ZHANG Yao(Environment and Plant Protection Institute,Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Integrated Pest Management of Tropical Crops,Ministry of Agriculture and Rural Affairs/Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests/Hainan Engineering Research Center for Biological Control of Tropical Crops Diseases and Insect Pests,Haikou,Hainan571101,China;Sanya Research Institute,Chinese Academy of Tropical Agricultural Sciences/Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-season Reproduction Regions,Sanya,Hainan 572000,China)

机构地区：[1]中国热带农业科学院环境与植物保护研究所/农业农村部热带作物有害生物综合治理重点实验室/海南省热带农业有害生物监测与控制重点实验室/海南省热带作物病虫害生物防治工程技术研究中心,海南海口571101 [2]中国热带农业科学院三亚研究院/海南省南繁生物安全与分子育种重点实验室,海南三亚572000

出　　处：《农业研究与应用》2022年第4期23-32,共10页Agricultural Research and Application

基　　金：国家木薯产业技术体系虫害防控岗位科学家专项(CARS-11-HNCQ);国家重点研发计划项目(2020YFD1000603)。

摘　　要：为了有效满足中国木薯产业健康持续发展需求,系统开展了抗木薯单爪螨木薯品种鉴定与评价。80个参试木薯品种中,C1115和缅甸品种对木薯单爪螨表现为高抗,SC5、SC9、SC15、利民、哥伦比亚4D共5个品种对木薯单爪螨表现为抗,SC8、SC12、SC8002等27个品种对木薯单爪螨表现为中抗,GR10、沙田面包、BRA12等41个品种对木薯单爪螨表现为感,SC205、TMS60444、KU50、面包、BRA900共5个品种对木薯单爪螨表现为高感。取食抗、感品种后的木薯单爪螨发育与繁殖差异显著。与感螨木薯品种相比较,取食抗虫木薯品种后的F0代木薯单爪螨发育历期显著延长(12.67~15.83 d),F1代每雌产卵量(7.33~14.13粒)、卵孵化率(30.96%~58.23%)和雌成螨比例(61.29%~66.90%)显著降低。上述结果表明,不同品种对木薯单爪螨的抗性不同,抗螨木薯品种可能通过显著延长木薯单爪螨的发育历期及显著降低后代每雌产卵量、卵孵化率和雌成螨抑制了木薯单爪螨种群数量发展,从而表现出抗螨免受木薯单爪螨取食为害。研究结果为深入解析木薯抗单爪螨机理研究提供了参试材料与理论依据。The identification and evaluation of cassava resistance to Mononychellus mecgregori were systematically carried out to effectively meet the the needs of healthy and sustainable development of China’s cassava industry.Among 80 varieties,C1115 and Myanmar had high resistance to M.mecgregori;SC5,SC9,SC15,Limin and Columbia 4D had resistance to M.mecgregori;27 varieties including SC8,SC12,and SC8002 had moderate resistance to M.mecgregori;41 varieties including GR10,Shatianmianbao and BRA2 had susceptibility to M.mecgregori;SC205,TMS60444,KU50,Bread and BRA900 had high susceptibility to M.mecgregori.The development and reproduction of M.mecgregori were significantly different after feeding on resistant and susceptible cassava varieties.Compared with those feeding on mite-susceptible cassava varieties,the development duration of F0 M.mecgregori was significantly longer(12.67~15.83 d),the egg laying amount per female(7.33~14.13),hatching rate(30.96%~58.23%)and female adults(61.29%~66.90%)of F1 M.mecgregori decreased significantly after feeding on resistant varieties.The above results showed that different cassava varieties had different resistance to M.mecgregori.The mite-resistant cassava varieties may inhibit the infestation of M.mecgregori by significantly prolonging the development duration and reducing the number of eggs per female,hatching rate and female adults of offspring,thus being protected from the harm of M.mecgregori.The results provide test materials and theoretical basis for further analysis of the mechanism of cassava resistance to M.mecgregori.

关 键 词：木薯品种 木薯单爪螨 抗螨性 鉴定评价 

分 类 号：S436.418.2[农业科学—农业昆虫与害虫防治]